unit cards visual refresh

[DreadKnight]

Card changes

• the margins will become color coded and realm specific (neutral version might be needed as well)
• level (vertical) and size (horizontal) could be embedded as details in the margins, using color coding

Side A

• no more css ridge border around bottom, as it tends to look different in various browsers (as most html/css things do overall...); there will be a top separator in the same style as the margins instead

Side B

• no more realm specific background (it's rather hard to notice and makes text harder to read overall)

[DreadKnight]

Visually, this would make the card more streamlined, more readable and perhaps a bit more cryptic as well. An advantage provided would be having the realm/level/size on both sides basically, easy to figure out unit. The unit set could likely be easily included as well at some point in order to not get similar units confused.